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Transport properties of the two-dimensional electron gas in Al xGa1-xN/GaN heterostructures

  • Bo Shen*
  • , Ning Tang
  • , Jie Lu
  • , Zewei Zheng
  • , Dunjun Chen
  • , Yongsheng Gui
  • , Qiu Zhijun
  • , Chunping Jiang
  • , Shaoling Guo
  • , Junhao Chu
  • , Rong Zhang
  • , Youdou Zheng
  • *此作品的通讯作者
  • Nanjing University
  • CAS - Shanghai Institute of Technical Physics

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Magnetotransport properties of modulation-doped AlxGa 1-xN/GaN heterostructures were studied at low temperatures and high magnetic fields. The strong Shubnikov-de Mass oscillations with the double periodicity is clearly observed, indicating the two-dimensional electron gas (2DEG) occupation of the double subbands in the triangular quantum well at the heterointerfaces. It is determined that the 2DEG occupation of the double subbands occurs when the 2DEG sheet concentration reaches 9.0 × 10 12cm-2, and the energy separation between the first and the second subbands is 75 meV. The quantum scattering time related to the first subband is determined to be 8.4 × 10-14 s. The mobilities of the 2DEG in the first and the second subbands, magnetointersubband scattering oscillations of the 2DEG, and the spin splitting of the 2DEG have also been studied.

源语言英语
主期刊名Extended Abstracts of the Fourth International Workshop on Junction Technology, IWJT 2004
编辑X.P. Qu, G.P. Ru, B.Z. Li, B. Mizuno, H. Iwai
出版商Institute of Electrical and Electronics Engineers Inc.
166-170
页数5
4
ISBN(印刷版)7309039157
出版状态已出版 - 2004
已对外发布
活动Extended Abstracts of the Fourth International Workshop on Junction Technology, IWJT 2004 - Shanghai, 中国
期限: 15 3月 200416 3月 2004

会议

会议Extended Abstracts of the Fourth International Workshop on Junction Technology, IWJT 2004
国家/地区中国
Shanghai
时期15/03/0416/03/04

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